7274641961 has 2 divisors, whose sum is σ = 7274641962. Its totient is φ = 7274641960.

The previous prime is 7274641919. The next prime is 7274641981. The reversal of 7274641961 is 1691464727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5538336400 + 1736305561 = 74420^2 + 41669^2 .

It is a cyclic number.

It is not a de Polignac number, because 7274641961 - 2⁶ = 7274641897 is a prime.

It is not a weakly prime, because it can be changed into another prime (7274641981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3637320980 + 3637320981.

It is an arithmetic number, because the mean of its divisors is an integer number (3637320981).

Almost surely, 2^7274641961 is an apocalyptic number.

It is an amenable number.

7274641961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7274641961 is an equidigital number, since it uses as much as digits as its factorization.

7274641961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 7274641961 is about 85291.5116585467. The cubic root of 7274641961 is about 1937.6286220598.

The spelling of 7274641961 in words is "seven billion, two hundred seventy-four million, six hundred forty-one thousand, nine hundred sixty-one".